现有一总体的8个样本为:0.6 3.2 5.2 2.8 3.4 1.1 6.8 1.9 求µ和σ2的矩估计量:
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现有一总体的8个样本为:0.6, 3.2, 5.2, 2.8, 3.4, 1.1, 6.8, 1.9 求µ和σ2的矩估计量:
A.µ = 3.1250,σ2 = 14
B.µ = 4.1250,σ2 = 14
C.µ = 1.1250,σ2 = 14
D.µ = 2.1250,σ2 = 13

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µ = 3 . 1250 , σ 2 = 14
